admin: improve searchboxes appearance

"Clear search" button is now fully over the search box, so the
focus/click effects fully wrap round it. Rounded edges of the button are
now only on the right edge.

html/admin.html

@@ -645,7 +645,7 @@
                             </div>
                         </div>
                         <input type="search" class="field ~neutral @low input search ml-2 mr-2" id="accounts-search" placeholder="{{ .strings.search }}">
-                        <span class="button ~neutral @low center -ml-8" id="accounts-search-clear" aria-label="{{ .strings.clearSearch }}" text="{{ .strings.clearSearch }}"><i class="ri-close-line"></i></span>
+                        <span class="button ~neutral @low center -ml-10 rounded-s-none" id="accounts-search-clear" aria-label="{{ .strings.clearSearch }}" text="{{ .strings.clearSearch }}"><i class="ri-close-line"></i></span>
                     </div>
                     <div class="supra py-1 sm hidden" id="accounts-search-options-header">{{ .strings.searchOptions }}</div>
                     <div class="row -mx-2 mb-2">
@@ -731,7 +731,7 @@
                         <div class="card @low dark:~d_neutral col" id="settings-sidebar">
                             <div class="flex-expand">
                                 <input type="search" class="field ~neutral @low input settings-section-button justify-between mb-2" id="settings-search" placeholder="{{ .strings.search }}">
-                                <button class="button ~neutral @low center -ml-8 mb-2 settings-search-clear" aria-label="{{ .strings.clearSearch }}" text="{{ .strings.clearSearch }}"><i class="ri-close-line"></i></button>
+                                <button class="button ~neutral @low center -ml-10 rounded-s-none mb-2 settings-search-clear" aria-label="{{ .strings.clearSearch }}" text="{{ .strings.clearSearch }}"><i class="ri-close-line"></i></button>
                             </div>
                             <aside class="aside sm ~urge dark:~d_info mb-2 @low" id="settings-message">Note: <span class="badge ~critical">*</span> indicates a required field, <span class="badge ~info dark:~d_warning">R</span> indicates changes require a restart.</aside> 
                             <span class="button ~neutral @low settings-section-button justify-between mb-2" id="setting-about"><span class="flex">{{ .strings.aboutProgram }} <i class="ri-information-line ml-2"></i></span></span>